scholarly journals Dimensional control of tunneling two-level systems in nanoelectromechanical resonators

2022 ◽  
Vol 105 (3) ◽  
Author(s):  
T. Kamppinen ◽  
J. T. Mäkinen ◽  
V. B. Eltsov
Keyword(s):  
Dimensional Control ◽  
Two Level Systems

Transmission Electron Microscopy of an Aluminum-Silver-Stainless Steel Solid State Bond

1985 ◽  
Vol 43 ◽  
pp. 172-173
Author(s):  
M. J. Carr ◽  
J. F. Shewbridge ◽  
T. O. Wilford
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Solid State ◽  
Specimen Preparation ◽  
Dimensional Control ◽  
Tem Analysis ◽  
Metal Parts ◽  
Dissimilar Metal ◽  
Transmission Electron ◽  
Short Time

Strong solid state bonds are routinely produced between physical vapor deposited (PVD) silver coatings deposited on sputter cleaned surfaces of two dissimilar metal parts. The low temperature (200°C) and short time (10 min) used in the bonding cycle are advantageous from the standpoint of productivity and dimensional control. These conditions unfortunately produce no microstructural changes at or near the interface that are detectable by optical, SEM, or microprobe examination. Microstructural problems arising at these interfaces could therefore easily go undetected by these techniques. TEM analysis has not been previously applied to this problem because of the difficulty in specimen preparation. The purpose of this paper is to describe our technique for preparing specimens from solid state bonds and to present our initial observations of the microstructural details of such bonds.

DIELECTRIC EVIDENCE FOR EXISTENCE OF TWO-LEVEL-SYSTEMS IN CYCLOHEXANOL, A " GLASSY CRYSTAL " SYSTEM

1982 ◽  
Vol 43 (C9) ◽  
pp. C9-525-C9-527
Author(s):  
G. P. Singh ◽  
R. Vacher ◽  
R. Calemczuk
Keyword(s):  
Crystal System ◽  
Two Level Systems

Calculation of the accuracy of a control head of a simplified design for dimensional control of parts

2020 ◽  
pp. 35-37
Author(s):  
Ya.L. Liberman ◽  
A.N. Mahiyanova ◽  
Gorbunova L.N.
Keyword(s):  
Size Control ◽  
Dimensional Control ◽  
Kinematic Accuracy ◽  
Measuring Probe

The metrological scheme of the control head of a simplified design is presented, its kinematic accuracy is analyzed. It is shown, that the effectiveness of the use of the head of this design, i.e., the accuracy of control, when controlling tolerances, in the manufacture of the part depends on the choice of the length of the measuring probe. Keywords part, size, control, measuring probe, kinematic accuracy, metrological scheme. [email protected]

Estimate of the conversion time in macroscopic two-level systems

1983 ◽  
Vol 56 (3) ◽  
pp. 897-903 ◽  
Author(s):  
E. K. Bashkirov ◽  
N. N. Bogolyubov ◽  
A. S. Shumovskii
Keyword(s):  
Two Level Systems ◽  
Conversion Time

Flatness and dimensional control of planar objects with a novel modular moiré system

1998 ◽  
Vol 29 (3) ◽  
pp. 174-178 ◽  
Author(s):  
Jussi Paakkari ◽  
Heikki Ailisto ◽  
Harri Kopola
Keyword(s):  
Dimensional Control

Density matrix and purity evolution in dissipative two-level systems: II. Relaxation

2021 ◽  
Author(s):  
Sambarta Chatterjee ◽  
Nancy Makri
Keyword(s):  
Density Matrix ◽  
Time Evolution ◽  
Reduced Density Matrix ◽  
Level System ◽  
Two Level Systems ◽  
Reduced Density ◽  
Harmonic Bath

We investigate the time evolution of the reduced density matrix (RDM) and its purity in the dynamics of a two-level system coupled to a dissipative harmonic bath, when the system is initially placed in one of its eigenstates.

Sign in / Sign up

Export Citation Format

Share Document